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Finding the Fourth Proportional to 7,491.94, 11,238.30 and 1,945.26

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Solution

The fourth proportional to 7,491.94, 11,238.30 and 1,945.26 is: 2,917.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,491.94 : 11,238.30 = 1,945.26 : x
  2. Step 2: Convert to fraction form
    7,491.94/11,238.30 = 1,945.26/x
  3. Step 3: Cross multiply
    7,491.94x = 11,238.30 × 1,945.26
  4. Step 4: Simplify right side
    7,491.94x = 21,861,415.46
  5. Step 5: Solve for x
    x = 21,861,415.46/7,491.94
  6. Step 6: Final answer
    x = 2,917.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.